@mixin clearfix {
    zoom: 1;
    &:before,
    &:after {
      content: '';
      display: table;
    }
  
    &:after {
      clear: both;
    }
  }
  
  @function multiple-box-shadow($n) {
    $value: '#{random(2560)}px #{random(2560)}px #FFF';
    @for $i from 2 through $n {
      $value: '#{$value}, #{random(2560)}px #{random(2560)}px #FFF';
    }
  
    @return unquote($value);
  }
  